THE REVIEW OF SOIL MOISTURE MULTI-SCALE VERIFICATION METHODS
Keywords: soil moisture, verification, remote sensing, multi-scale, cross-validation, ground penetrating radar
Abstract. Soil moisture is an important physical parameter to investigate water circulation, while it is difficult to be measured with spatiotemporal consistency. During the past several decades, a larger number of soil moisture verification methods were proposed, however, the review of soil moisture verification method from multi-scale perspective is still lacking. This paper investigates the verification method of soil moisture from three scale, such as point-scale, regional scale and remote sensing data verification. The prospect of soil moisture verification is proposed to serve retrieval algorithm validation.